2018 border realignment Dutch/Belgian Limburg.
The border between Dutch and Belgian Limburg (for this section of the river) was established in the 1840s as running through the middle of the Maas. The river changed course in the 1960s but the border...

2018 border realignment Dutch/Belgian Limburg.

The border between Dutch and Belgian Limburg (for this section of the river) was established in the 1840s as running through the middle of the Maas. The river changed course in the 1960s but the border did not change - leaving two portions of Belgium east of the river, and one portion of The Netherlands to the west. On January 1, 2018 the border was once again established as running through the middle of the river, leaving Dutch Limburg with a gain of over 10 hectares!

(Source: reddit.com)